Richard J. Johnson, M.D. is a Professor of Medicine at the University of Colorado.  Dr Johnson is a clinician and a medical scientist who has been internationally recognized for his work on kidney disease, especially diabetic kidney disease and Chronic Kidney Disease of Unknown Etiology. He is also the founding editor of Comprehensive Clinical Nephrology, one of the most popular textbooks on kidney disease. He also is an expert on sugar (and especially fructose and its product, uric acid) and how they may play a role in obesity and diabetes. He has been funded by the National Institute of Health and is widely published, with over 900 academic papers,  and with several popular books on the subject, of which the most recent is his book, called Nature Wants Us to Be Fat (Benbella, 2022).